iOS is considered as one of the safest mobile systems. It doesn't allow to install applications outside the App Store, which prevents from installation of malicious applications (what sometimes happens on Android). But as it turns out, there are ways to do interesting modifications on iOS, and one of them is the ability to run Windows XP on this system.
Hacking Jules channel on YouTube posted video on which we can see started Windows XP on iPhone 7. To run Windows on Apple device Hacking Jules used iBox emulator, and, interestingly, it wasn't necessary to have a jailbreak on phone.
System works fairly fluently, but the icons are small, what causes use of the phone with Windows XP is uncomfortable. That's why the whole experiment should be treated more as a curiosity than something which will change daily life.